If it's a bandwidth clog, this can only mean one of two things. One, Frontier has GREATLY increased the bandwidth requirements of the game with the latest update, since I very rarely had this problem in my years playing the game before the update (often with much worse Internet than I have today). Or two, Frontier dumped a bunch of dirt on my router the day the September update dropped. Either way, it's likely Frontier's faultThat's exactly when I used to get it, also when NPC wings joined CZ's. In my case it was definitely bandwidth as if you run with CTRL+B enabled you can see it spike.